Accton Technology Fast EtherHub-12s User manual

EtherHub 1500 System

User’s Guide

♦ EtherHub-16i

✚

♦ EtherHub-16mi

✚

EtherHub 1500 System

User’s Guide

♦ EtherHub-16i

✚

♦ EtherHub-16mi

✚

No part of this document may be copied or reproduced in any form or by any means without the prior written

consent of Accton Technology Corporation.

Accton makes no warranties with respect to this documentation and disclaims any implied warranties of

merchantability, quality, or fitness for any particular purpose. The information in this document is subject to change

without notice. Accton reserves the right to make revisions to this publication without obligation to notify any person

or entity of any such changes.

.QWHUQDWLRQDO-HDGTXDUWHUV

No. 1 Creation Road III,

Science-based Industrial Park

Hsinchu 300, Taiwan, R.O.C.

Phone: 886-35-770-270

FAX: 886-35-770-267

BBS: 886-35-770-654

Internet: [email protected]

:8&-HDGTXDUWHUV

1962 Zanker Road

San Jose, CA 95112

Phone: 408-452-8900

FAX: 408-452-8988

BBS: 408-452-8828

FAST FAX: 408-452-8811

Accton, AccView, EtherHub and SwitcHub are trademarks or registered trademarks of Accton Technology

Corporation. Other trademarks or brand names mentioned herein are trademarks or registered trademarks of their

respective companies.

EH1501s

EH1502s

E0895-R01

150482-101

FCC Warning

FCC Warning i

This equipment has been tested and found to comply with the limits for

a Class A digital device pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial

environment.

This equipment generates, uses, and can radiate radio frequency

energy, and if not installed and used in accordance with the instruction

manual may cause harmful interference to radio communications. Its

operation in a residential area is likely to cause harmful interference in

which case the user will be required to correct the interference at his

own expense.

A shielded transceiver cable is required to be used in order to ensure

compliance with FCC Part 15; it is the responsibility of the user to

provide such cable.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

Canadian Standards Association (CSA) Statement

This digital apparatus does not exceed the Class A limits for

radio noise emissions from digital apparatus as set out in the

radio interference regulations of the Canadian Department of

Communciations.

Sicherheitshinweise

Sicherheitshinweise iii

1. Die Steckdose muß sich in der Nähe des Gerätes befinden und leicht

zug

änglich sein.

2. Zum Reinigen den Stecker aus der Steckdose ziehen. Beim Reinigen

keine Fl

üssigreiniger oder Sprays verwenden, sondern ein

angefeuchtetes Tuch.

3. Das ...... ger

ät nicht in Naßräume oder in der Nähe von Wasser

benutzen, wie z.B. Badezimmer, Schwimmbad, Sp

ülbecken usw. . Das

Eindringen von Wasser kann zur Zerst

örung des Gerätes führen.

4. Das ...... ger

ät nicht auf einer unstabilen Unterlage, wie z.B.

Rollwagen, Gestell usw., aufstellen. Es k

önnte herunterfallen und

Verletzungen oder Besch

ädigungen von Mensch und Gerät

verursachen.

5. Die Bel

üftungsöffnungen nicht blockieren oder auf falscher Ober-

fl

äche, wie Bett, Sofa usw., stellen. Durch die Blockierung kann es zur

Zerst

örung des Gerätes durch Überhitzung kommen.

6. Versuchen Sie niemals dieses Ger

ät selbst zu warten, da beim Öffnen

oder Abnehmen des Geh

äuses die Gefahr eines elektrischen Schlages

besteht.

7. Keine Gegenst

ände auf das Anschlußkabel stellen, damit es nicht

durch scharfe Kanten zerst

ört werden kann.

8. Keinerlei Gegenst

ände durch die Öffungen in das Gerät stecken, da es

dadurch sonst zu Kurzschl

üssen kommen kann.

9. Bei St

örungen des Gerätes den Wartungsdienst verständigen.

10. Bei Reperaturen d

ürfen nur Orginalersatzteile oder Bauteile mit

gleichen Eigenschaften verwendet werden. Andere Bauteile k

önnen

Feuer, elektrischen Schlag oder andere Gefahren verursachen.

11. Nach Beendigung von Wartungsarbeiten oder Reperaturen durch den

Kundendienst sollte die Sicherheitspr

üfung durchgeführt werden.

12. Bei l

ängerem Stillstand des Gerätes, ist diese von der Versorgungs-

spannung zu trennen. Dies verhindert eine Besch

ädigung des Gerätes

durch eine

Überspannung in der Zuleitung.

Der arbeitsplatzbezogene L

ärmschutzpegel nach DIN 45 635 ist kleiner

70dB (A).

v

About this Guide

This is an installation guide for the EtherHub 1500 hubs 

EtherHub-16i

+

and EtherHub-16mi

+

. It covers the following

topics:

ì Product description, summary of important features and

specifications

ì Brief description of the EtherHub 1500 System

ì Description of significant components of the unit including

LED indicators, ports, buttons and switches

ì Hardware installation procedure

ì System setup and configuration

ì Applications

vii

Package Contents

Carefully unpack the contents of the package and verify them

against the checklist given below. This checklist applies to both

the EtherHub-16i

+

and EtherHub-16mi

+

unless otherwise specified.

Package Checklist

æ EtherHub-16i

+

(Model No. EH1501s) or

EtherHub-16mi

+

(Model No. EH1502s)

æ One AC power cord

æ 0.5 meter FlexBus 1500 cable

æ Four rubber feet

æ BNC T-type connector and two 50-ohm (Ω) terminators

(for models with the BNC transceiver module only)

In addition, the EtherHub-16mi

+

package includes the following:

æ One serial RS232 connector module which includes 2 DB9

to RJ-45 converter connectors, one DB25 to RJ-45 converter

connector, and one 3-meter parallel UTP cable

æ Diskette containing -

Accton’s EtherHub 1500 System Configuration Program

Please inform your dealer immediately should there be any

wrong, missing, or damaged parts.

If possible, retain the carton, including the original packing

materials. Use them again to repack the unit in case there is a

need to return it for repair.

To qualify for product updates and product warranty

registration, fill in the

Owner Registration Card and return it

to Accton Technology Corporation.

Contents

ix

Chapter 1: Overview 1-1

The EtherHub 1500 System 1-1

Features of EtherHub 1500 System 1-4

Distinguishing Factors of EtherHub 1500 System 1-5

Chapter 2: Hardware Description 2-1

Front Panel Displays 2-1

SmartWatch LED Panel 2-2

PWR/CPU 2-3

Interhub 2-3

Isolated (EtherHub-16i

+

only) 2-3

Serial (EtherHub-16mi

+

only) 2-4

Terminator 2-4

Monitor (EtherHub-16i

+

only) 2-5

SNMP (EtherHub-16mi

+

only) 2-5

Jabber 2-6

Alert 2-7

Utilization 2-7

Collision 2-8

Segment LED Indicators 2-9

Hub ID Indicators 2-10

Port Status Indicators 2-10

PARTITION/DISABLE 2-11

LINK/TRAFFIC 2-12

Diagnostic Test LED Indicators 2-13

Configure Button 2-14

STP Station Ports 2-15

Daisy-Chain Switch 2-15

Rear Panel Displays 2-16

Port Connections 2-16

FlexBus 1500™ 2-16

Serial Port (EtherHub-16mi

+

only) 2-17

ALT Port 2-17

BNC Module (10BASE2) 2-18

Power Socket 2-18

Power Switch 2-18

EtherHub 1500 System User’s Guide

x Contents

Chapter 3: Hardware Installation 3-1

Before You Begin 3-1

Hardware Installation 3-2

Stacking Hubs without a Rack 3-3

Mounting Hubs on a Rack 3-4

Connecting the Hub System 3-5

Preparing for System Configuration 3-7

Local Out-of-Band Configuration 3-7

Remote Out-of-Band Configuration 3-8

In-Band Configuration 3-10

Installing an SNMP Backup Agent 3-10

Chapter 4: Setup and Configuration 4-1

System Setup 4-1

Diagnostic Tests 4-1

Upon Power On 4-1

During Normal Operation 4-2

Multi-Segment Architecture 4-2

FlexBus 1500 Management Link 4-3

Hub ID Setting 4-3

SNMP Backup Agent 4-3

Port Backup Function 4-4

Hot Remove Function 4-5

Preparing for Configuration Management 4-5

Out-of-Band Configuration 4-5

EtherHub 1500 System Configuration Program (EtherHub-16mi

+

) 4-8

System Menu 4-9

Displaying System Information 4-9

Changing System Configuration 4-10

Assigning Trap Managers 4-10

Downloading System Software 4-11

Restarting the Agent 4-11

Reverting Configuration to Factory Settings 4-11

Control Menu 4-12

Configuring Hub Parameters 4-12

Configuring Port Parameters 4-13

Defining Backup Ports 4-13

Setting the External Configure Buttons 4-14

EtherHub 1500 System User’s Guide

Contents xi

Performance Menu 4-14

Threshold Menu 4-14

Using the Configure Button 4-16

Selections Available 4-18

Chapter 5: Applications 5-1

Attaching Stack to One Segment 5-1

Attaching Stack to Three Segments 5-2

Attaching Stack to Multiple Segments 5-3

Each Hub is Isolated 5-4

Extending the Network with STP/BNC Connections 5-5

Linking a Stack to a Network Management Station 5-6

Interconnecting Segments 5-7

Linking a Distributed Segment 5-8

Linking Distributed Segments 5-9

Operating in Novell NetWare IPX Environment 5-10

Operating in TCP/IP Environment 5-11

EtherHub 1500 System User’s Guide

xii Contents

Appendix A: Product Specifications A-1

Features A-1

Physical Characteristics A-1

Specifications for FlexBus 1500 Cable A-2

Attenuation for Horzontal FlexBus 1500 Cable

Error! Bookmark not defined.

NEXT for Horizontal FlexBus 1500 Cable A-3

Standards Compliance A-4

Appendix B: Pin Assignments B-1

FlexBus 1500 Pin Description B-1

RS232 Port Pin Description B-1

DB9 Serial Port to RJ-45 Converter Connector Pin Assignment B-2

DB9 PC’s COM Port to RJ-45 Converter Pin Assignment B-2

DB25 RS232 to RJ-45 Converter Connector Pin Assignment B-3

Connection from EH1502s Serial Port to PC’s COM Port B-3

Connection from EH1502s Serial Port to Modem’s DCE Port B-4

Appendix C: Product Support Services C-1

Product Registration C-1

Problem Report C-1

Hardware Repair Service C-1

Software Update and Upgrade Service C-2

Bulletin Board Service (BBS) C-2

Interactive Fast Fax (U.S.A. office) C-3

Technical Support C-3

Limited Warranty C-4

Customer Remedies C-4

Return Process C-5

Ordering Information C-6

Glossary

Index

List of Figures

xiii

Figure 2.1 The EtherHub-16i

+

Front Panel 2-1

Figure 2.2 The EtherHub-16mi

+

Front Panel 2-1

Figure 2.3 SmartWatch

 LED Panel for EtherHub-16i

+

2-2

Figure 2.4 SmartWatch

 LED Panel for EtherHub-16mi

+

2-2

Figure 2.5 Daisy-Chain Switch Setting 2-15

Figure 2.6 The EtherHub-16i

+

Rear Panel 2-16

Figure 2.7 The EtherHub-16mi

+

Rear Panel 2-16

Figure 3.1 Stacking Hubs without a Rack 3-3

Figure 3.2 Mounting Hubs Using a Mounting Rack 3-4

Figure 3.3 Connecting Hub’s Serial Port to

PC COM Port 3-7

Figure 3.4 Connecting Hub’s Serial Port to

a Modem 3-8

Figure 3.5 Connecting Remote PC’s Serial Port to a Modem 3-9

Figure 4.1 Communication Port Dialog Box 4-6

Figure 4.2 DCE/DTE Dialog Box 4-7

Figure 4.3 Phone List Menu 4-7

Figure 4.4 Main Menu 4-7

Figure 5.1 Attaching All Hubs in Stack to One Segment 5-1

Figure 5.2 Attaching Hubs in Stack to 3 Segments 5-2

Figure 5.3 Linking Part of the Stacked Hubs to a Segment 5-3

Figure 5.4 Stacked Hubs Not Linked to a Segment 5-4

Figure 5.5 Linking Stacked Hubs to Unmanaged Hubs

with STP Port Connection 5-5

Figure 5.6 Linking Stacked Hubs to a Network

Management Station 5-6

Figure 5.7 Linking Segments in a Stacked System 5-7

Figure 5.8 Linking a Distributed Segment 5-8

Figure 5.9 Linking Distributed Multi-Segments 5-9

Figure 5.10 System Applied in Novell NetWare IPX

Environment 5-10

Figure 5.11 System Applied in TCP/IP Environment 5-11

1-1

Chapter 1: Overview

The EtherHub 1500 System

The EtherHub 1500 System is a powerful and innovative LAN

network enhancement and management product series. Each

component in the system supports a multi-segment bus

architecture that enhances traffic management and network

bandwidth utilization. This system offers the network manager

a wide range of flexible configuration options, allowing you to

effectively increase your network’s bandwidth. In addition, the

entire installation can be monitored and controlled through any

network management station.

The major components of this network system include:

EtherHub-16mi

+

, a 16-port intelligent hub with an SNMP-

based network management agent for monitoring and

controlling various network components. It includes -

• 16 RJ-45 STP station ports for connecting computers to the

network using shielded or unshielded twisted-pair cable

• 1 optional port for installing an AUI, BNC or Fiber-Optic

module, which permits connection to thick or thin Ethernet

or 10BASE-F cable

• 2 FlexBus 1500 ports for connecting to compatible hubs via

a FlexBus 1500 STP cable

• RJ-45 port 16 which can also be converted to a daisy-chain

port (

) using the daisy-chain switch

• SmartWatch LED panel that provides an easy way to

configure and monitor the system

EtherHub 1500 System User’s Guide

1-2 Overview

In addition, this hub supports a multi-segment bus architecture

that enhances traffic management and network bandwidth

utilization. With an SNMP agent, this unit not only functions

as an intelligent hub, but can also monitor up to 10 intelligent

hubs connected to it (including itself) through the FlexBus 1500

port connection. The EtherHub-16mi

+

conforms to both the

IEEE 802.3 repeater specification and the Simple Network

Management Protocol (SNMP).

This hub supports both in-band and out-of-band management.

For in-band management, it uses Accton’s optional Network

Management Software, called AccView/Open (not included

with this package) to monitor and control a stacked system. For

out-of-band management, the device’s RS232 port can be

connected to a PC and managed using Accton’s EtherHub 1500

System Configuration Program. Any computer (i.e., XT, AT)

with a COM1~4 RS232 port, at least 640 KB on-board memory,

and a monochrome, EGA or VGA display can be used.

The Etherhub-16mi

+

can be configured as a stand-alone system

to form a simple LAN networking 2 to 16 computers using the

RJ-45 ports. Or it can be connected to other hubs using the

FlexBus 1500 port connection. Further network expansion can

be achieved using the BNC, AUI or fiber-optic trunk port

connection (optional ALT PORT), or the RJ-45 daisy-chain

port. Workstations are connected to the EtherHub-16mi

+

station ports using shielded or unshielded twisted-pair cable.

EtherHub 1500 System User’s Guide

Overview 1-3

EtherHub-16i

+

, a 16-port intelligent 10BASE-T hub. It includes -

• 16 RJ-45 STP station ports for networking computers to the

network using shielded or unshielded twisted-pair cable

(STP or UTP).

• 1 optional port for installing an AUI, BNC or Fiber-Optic

module, which permits connection to thick or thin Ethernet

or 10BASE-F cable.

• 2 FlexBus 1500 ports for connecting to compatible hubs or

to the EtherHub-16mi

+

via a FlexBus 1500 cable.

• RJ-45 port 16 which can be converted to a daisy-chain port

(

) using the daisy-chain switch.

• Comprehensive LED indicators on the front panel to provide

easy and quick configuration and monitoring the unit.

As an intelligent hub, the EtherHub-16i

+

collects port statistics

and records events for system administration. When stacked with

other intelligent hubs through the FlexBus 1500 ports and

connected to an SNMP management device (e.g., EtherHub-

16mi

+

), you can monitor and control all attached hubs through

in-band and out-of-band communication.

The EtherHub-16i

+

can be used in a stand-alone configuration

to form a simple LAN networking 2 to 16 computers using the

RJ-45 ports. Further network expansion can be achieved using

the BNC, AUI or fiber-optic trunk port connection (optional

ALT PORT), or the RJ-45 daisy-chain port. Workstations are

connected to the EtherHub-16i

+

station ports using shielded or

unshielded twisted-pair.

AccView/Open (SW6102), a Windows-based network

management software package that analyzes and displays data

from the EtherHub-16mi

+

and transmits commands from the

user to the EtherHub-16mi

+

. AccView should be installed on

the network management station (i.e., any workstation used to

manage the network). If segmented architecture is used, the

network management station should be on the same segment as

EtherHub 1500 System User’s Guide

1-4 Overview

the SNMP management agent (i.e., EtherHub-16mi

+

). The

network management station can be a 386 or 486 workstation

with a 10MB hard disk, at least 2 MB on-board memory, a

VGA display, and running Windows version 3.1 or higher (i.e.,

Windows 3.1, 3.11, ’95, NT).

AccView/Open EtherHub Manager, is network management

software specifically designed to manage Accton’s EtherHub

family. This software can be integrated into the following

third-party management platforms -

• SunNet Manager/Sparc (SW6120-1)

• SunNet Manager/X86 (SW6120-2)

• OpenView/Windows (SW6121)

• OpenView/Sparc (SW6122)

• Novell Netware Managment System (SW6124)

Alternative Interface Module -

• BNC (EH1551),

default module preinstalled in EH1500

• AUI (EH1552)

• Fiber Optic (EH1553)

Security Kit (SW7300), for intrusion/eavesdropping protection

Features of EtherHub 1500 System

• Conforms to the SNMP & IEEE Hub Management

Standards, MIB I and MIB II

• Conforms to the IEEE 802.3 repeater specification and the

10BASE-T standard

• Manages up to 10 concentrators using the FlexBus 1500

(STP) cable

• One optional port (BNC, AUI or Fiber-Optic) for connecting

to any Ethernet media via slide-in alternative module

transceiver

EtherHub 1500 System User’s Guide

Overview 1-5

• Provides one serial 9-pin RS232 port for out-of-band

network management (EtherHub-16mi

+

only)

• Supports daisy chaining by using a daisy-chain switch to

convert port 16 to a daisy-chain port

• Automatic polarity detection and correction permits

automatic recovery due to wiring errors

• Automatically partitions bad port to protect network

• Adapts to universal wide range voltage power

(i.e., 100V AC to 240V AC +/- 10%, 50~60 +/- 3Hz)

• Flexible installation for desktop, wall mount, or rack

installation (standard 19” size)

Distinguishing Factors of EtherHub 1500 System

• Provides multi-segment architecture allowing the network to

be split into three segments

• Includes a SmartWatch comprehensive LED indicator

panel for reporting network activity, unit configuration and

facilitating problem diagnosis

• Automatic ID assignment and auto-terminator setting for

auto-configuration

• Supports fault-tolerant configuration by allowing port link

backup and agent backup

• Two FlexBus 1500 management ports (BUS IN/OUT) for a

bundled cable containing 3 separate Ethernet segments and

a management link

• Provides front panel configuration using a Configure button

EtherHub 1500 System User’s Guide

1-6 Overview

• Supports out-of-band management (using Accton’s proprietary

EtherHub 1500 System Configuration Program), and full

software configurable in-band management using the optional

AccView/Open (network management software)

• Flash ROM on board the EtherHub-16mi

+

for easily updating

the SNMP agent using AccView/Open’s download option

• Stacked hubs can be distributed up to 100-meters in a single

segment configuration

2-1

Chapter 2:

Hardware Description

This chapter describes the hardware features of the EtherHub-16i

+

and EtherHub-16mi

+

. Except for 3 LED indicators that are unique

to each hub, both products have similar indicators and other front

panel components. Likewise, the rear panel is similar for both

versions, except that the EtherHub-16i

+

does not support the RS-

232 serial port. Before connecting any network device to the hub,

read this chapter carefully. For easier management and control of

the hub, familiarize yourself with the front panel indicators and

Configure button.

Front Panel Displays

Figure 2.1 The EtherHub-16i

+

Front Panel

Figure 2.2 The EtherHub-16mi

+

Front Panel

EtherHub 1500 System User’s Guide

2-2 Hardware Description

SmartWatch LED Panel

Both hubs have a SmartWatch LED panel that includes

comprehensive indicators for monitoring the device and

network status. A quick glance at the front panel tells you if

the unit’s power in ON, if it is monitoring another hub (or

concentrator), or if a problem exists on the network. The

following sections describe the function of each indicator.

Figure 2.3 SmartWatch LED Panel for EtherHub-16i

+

Figure 2.4 SmartWatch LED Panel for EtherHub-16mi

+

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